Finding the Fourth Proportional to 2,669.86, 3,684.49 and 1,490.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,669.86 : 3,684.49 = 1,490.91 : x
2. Step 2: Convert to fraction form
   2,669.86/3,684.49 = 1,490.91/x
3. Step 3: Cross multiply
   2,669.86x = 3,684.49 × 1,490.91
4. Step 4: Simplify right side
   2,669.86x = 5,493,225.44
5. Step 5: Solve for x
   x = 5,493,225.44/2,669.86
6. Step 6: Final answer
   x = 2,057.49